Bamboo on the outside, stainless steel on the inside - The perfect eco-friendly combo! This portable stainless-steel bottle is more of a necessity than a luxury in the scorching heat of summer. They provide thermal insulation for up to 6-8 hours. Infused beverages are the trend in today's time, and the strainer that comes inside allows you to show that off on the go! They are travel-friendly and do not harm the environment. Insert them anywhere: in your car cup holder, on your bicycle, or in your sling! This chic tumbler is sure to turn heads with it's soothing color and sophisticated body. Sizes: 500 ML with Strainer / 450 ML without Strainer Material: Bamboo and Stainless Steel Drinkware Type: Vacuum flask and thermoses Thermos type: Stainless steel Thermal Insulation: 6-8 hours Unisex